Cast:Adding cast_transport_config and cleaning up

media/cast/framer/framer.h

Index: media/cast/framer/framer.h
diff --git a/media/cast/framer/framer.h b/media/cast/framer/framer.h
index cf72da6c35dbf0bf1d4111a0736f3d91f055be3a..e4bfe4bf329e8ce83fb5277b9c3452e8e94207b8 100644
--- a/media/cast/framer/framer.h
+++ b/media/cast/framer/framer.h
@@ -42,11 +42,11 @@ class Framer {
   // frame.
   // Returns false if the frame does not exist or if the frame is not complete
   // within the given time frame.
-  bool GetEncodedVideoFrame(EncodedVideoFrame* video_frame,
+  bool GetEncodedVideoFrame(transport::EncodedVideoFrame* video_frame,
                             uint32* rtp_timestamp,
                             bool* next_frame);
 
-  bool GetEncodedAudioFrame(EncodedAudioFrame* audio_frame,
+  bool GetEncodedAudioFrame(transport::EncodedAudioFrame* audio_frame,
                             uint32* rtp_timestamp,
                             bool* next_frame);